Winform 中对无标题栏窗口拖动示例

项目中需要对无标题栏窗口单击拖动功能  ， 调用 window api 实现比较简洁. 如下源码，单击窗口任意位置，调用Win API , 实现窗口拖动。

Window API:

 [DllImport("user32.dll")]
 public static extern bool ReleaseCapture();
 
[DllImport("user32.dll")]
 public static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);

拖动实现:

//初使化窗口，注册所有控件单击事件   
private void EngineVerify_Load(object sender, EventArgs e)
        {
            BindMouseDown(tableLayoutPanel1.Controls);
        }

        void BindMouseDown(Control.ControlCollection cc) {
            foreach (Control c in cc)
            {
                c.MouseDown += C_MouseDown;
                if (c.Controls.Count > 0) {
                    BindMouseDown(c.Controls);
                }
            }
        }

        private void C_MouseDown(object sender, MouseEventArgs e)
        {
            ReleaseCapture();
            SendMessage(Handle, 274, 61440 + 9, 0);
        }